Patents by Inventor Ying-Tung Chiu

Ying-Tung Chiu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Driving device for bicycle
    Patent number: 5002296
    Abstract: A driving device without chain for bicycle comprises a driving wheel mounted to a crank shaft, a rear gear mounted to a wheel hub for mounting a rear wheel of the bicycle, an input gear coupled with the driving wheel by means of an interconnecting link and a gear set having two identical gears respectively engaging the rear gear and the input gear.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: March 26, 1991
    Inventor: Ying-Tung Chiu